/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraOverviewGraphViewModel.h
Gets a multicast delegate which is called when nodes are pasted in the graph.
[FOnNodesPasted](API\Plugins\NiagaraEditor\ViewModels\FNiagaraOverviewGraphViewModel\FOnNodesPasted) & OnNodesPasted()